Method for controlling prodenia litura by combination of indiifferent separated strains of insect virus

A technology for combined control of Spodoptera litura, applied in the directions of botanical equipment and methods, applications, animal repellents, etc., can solve the problems of difficulty in popularizing and applying enhanced virus insecticides and increasing production costs.

Inactive Publication Date: 2005-07-27
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will greatly increase the production cost, making it difficult to popularize and apply the enhanced virus insecticide

Method used

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Examples

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Embodiment 1

[0013] Embodiment 1: the embodiment that inventor makes in the present invention:

[0014] The three distant isolates of SlNPV Chinese strain, Japanese strain and Egyptian strain increased the insecticidal speed and insecticidal effect against Spodoptera litura larvae when paired together. As shown in Table 1, at a constant temperature of 29°C, the three isolates increased the insecticidal speed of the second instar Spodoptera litura to varying degrees when they were mixed in pairs, and the insecticidal speed increased by up to 44.8%; The insecticidal effect is also improved to a certain extent, and the highest increase rate reaches 50%.

[0015] Table 1 Speed-enhancing effects of different isolates of SlNPV on 2nd instar Spodoptera litura larvae at a constant temperature of 29°C

[0016] Process Proportion LT 50 (day) Insecticidal speed Insecticidal effect (%) Insecticidal effect

[0017] Improvement rate (%) Improvement rate (%) ...

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Abstract

A method for controlling the Prodenia litura features that the separated different strains of a same nuclear polyhedron virus are combined for high insecticiding speed and efficiency. Its advantages are high effect and high safety.

Description

1. Technical field [0001] The invention relates to a control technique for preventing and controlling pests by utilizing the synergistic enhancement effect of isolates of the same nuclear polyhedrosis virus, and belongs to the technical field of pest biological control. 2. Background technology [0002] Insect viruses are pathogenic natural enemies that suppress pest populations. They are highly pathogenic to host insects, safe for humans, animals and natural enemies, and do not pollute the environment. In particular, they can form epidemics in pest populations, control insect populations for a long time, and are not easy to produce drug resistance. Such obvious advantages determine that it has strong vitality. As people's requirements for the quality of agricultural products and the environment are increasing day by day, virus insecticides are getting more and more attention. Nuclear polyhedrosis virus (NPV) is the most discovered and most widely used class of insect virus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/00
Inventor 方继朝郭慧芳王节萍刘宝生
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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